Spraying attachment for steam-boiler furnaces.



No. 654,485. Patented July 24, |900.,

H. E. PARSUN. SPRAYING ATTACHMENT FR STEAM fBOILEH FUBNACES.

(No Model.)

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tran "Sterns HENRY E. PARSON, OF iElV YORK, N. Y.

srncrrroarron forming para of Letters Patent NQ. 654,485, dated July 24,i900.

Application iiled September 29,1899. Serial No."732,089. (No model.) i

To @ZZ whom it may concern:

Be it known that I, HENRY E. PARsoN, av citizen of the United States,residing at New York, in the borough of Brooklyn and State'of NewYork,`nave invented certain new and useful Improvements in Ash-SprayingAttachments for Steam-Boiler Furnaces, of which the following is aspecification.

This invention relates to an ash-spraying attachment for steam boilerfurnaces, by means of which the hot ashes after the live coals arebanked up in front of the fire-bridge at the rear of the furnace can besprayed with water in such a manner that they can be removedconveniently and with practically no dust through the doorway at thefront of the furnace.

The invention consists of asupply-pipe and a spray-nozzle thereon,comprising an elbowcoupling fixed to the supply-pipe and provided with aflaring mouth, an axial screwthreaded post or spindle extending from theelbow-coupling through said mouth, and an adjustable spray-spreadingbell screwed onto said spindle and adapted to widen or reduce the spacebetween the upper end of bell and the said flaring mouth, all as will behereinafter fully described and then particularly claimed.

In the accompanying drawings, Figure l represents a verticallongitudinal section of a furnace, showing my improved ash-sprayingattachment applied thereto. Figs. 2 and 3 are respectively a detailfront elevation of the support for the supply-pipe and a vertical Fig. 4is a vertical central section of the spray-nozzle, and Fig. 5 is anunderside View of the same.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the furnace of a steam-boiler, Bthe grate-bars'of the same, and C a coal-banking ledge raised above thegrate in front of the lire-bridge D.

E is the doorway, surrounded by a front plate e, and to which are fixedupwardly-extending supporting-hooks e, which are adapted to removablysupport at a point about midway of the upper and lower ends of thedoorway a transverse bridge or lazy-bar F, which is provided with acentral notch or recess f. The ,supply-pipe G for the spraynozzle H issupported on the bridge F in said recess f. A

The supply-pipe G is provided at its outer end with a stop-cock g and isconnected with a hose g', that is in turn connected with a suitablewater-supply. The supply-pipe is somewhat longer than the lengt-h of thegrate of the furnace, so that `every part of the grate can be reached bythe spray of water issuing from the nozzle H.

The nozzle H is arranged with its axis at right angles to thesupply-pipe G, and it consists of an elbow-coupling h, Fig. 4, which isscrewed onto the end of the said pipeand is provided with a Hangingmouth h. Screwed into 'the coupling jr, coincident with the axis of theflaring mouth 71.', is a spindle I, which is provided at its outer end,which extends beyond the said mouth, witha screw-thread which receives acorresponding female screwthread in the conical bell J. The smalltapered end of the bell J is received in the mouth 71.', so that bytaking hold of a grip-bar j, extending transversely of the interior ofthe bell, the space between the latter and the said mouth may beincreased or diminished. The outer surface of the bell therefore servesto spread the conical stream of water which issues from the mouth of thenozzle, so that the water is sprayed.

My improved ash-spraying attachment is used as follows: The live coalsare iirst banked up upon the ledge C at the rear of the fire-chamber andthe bridge or lazy-bar F is then placed on its hook-supports after thefurnace-door has been opened. The spraynozzlerand supply-pipe are thenintroduced into the fire-chamber, so that the supply-pipe rests upon thesaid bridge within the recess f thereof. Before introducing the nozzleinto the fire-chamber the spray-spreading bell J is set to desiredposition, and when the nozzle is arranged in proper position over thegrate the stop-cock g of the supply-pipe is opened, so that a spray ofwater is discharged onto the ashes supported on the grate. Thespraynozzle is gradually moved over the entire grate until all of thehot ashes are sufciently moistened so that they can be removed withlittle or no dust. The dust stirred up by the IOO conical spray is as itwere choked within the hollow interior of the spray, thus avoiding theraising of the dust. After the ashes have been sprayed and removed thelive coals are again brought forward and uniformly distributed over thegrate and an additional supply of coal then spread over them.

The spraying attachment can be quickly applied for use from time to timeas required, so that the fire can be always kept up without raisingdust.

' Having thus described my invention, I claim as new and desire tosecure by Letters Patenty l. The herein-described spray-nozzle,consisting of an elbowcoupling, provided with a Haring mouth at one end,an axial screwthreaded spindle rigidly fixed inside the coupling andextending through said mouth, and

a conical spray-spreading bell screwed onto the said spindle,substantially as set forth.

2. The herein-described spray-nozzle having a flaring mouth, incombination with a conical spray-spreading bell provided with atransverse grip-bar for turning it, and the smaller end of which bell isreceived by said mouth, while the larger end extends below the mouth,and means for connecting said bell adjustably with the nozzle,substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

HENRY E. PARSON.

Vtitnesses:

PAUL GOEPEL, GEO. L. WHEELOCK.

